Mechanism for oiling bearings



(No Mm.

D. GBSSNER. MECHANISM FOR OILING BEARINGS.

No. 521,235 Patented June 12, 1894.

inllllll V Ell-III UNITED STATES PATENT GFFICE.

DAVID GESSNER, OF WORCESTER, MASSACHUSETTS.

MECHANISM FOR OILING BEARINGS.

SPECIFICATION forming part of Letters Patent N 'o. 521,235, dated June12, 1894. Application filed March 18, 1891. Serial 110385.443. (N0model.)

To all whom it may concern.-

Be it known that I, DAVID'GESSNER, of Worcester, in the StateofMassachusetts, have lnvented a new and useful Improvement in MechanismforOiling the Bearings of Rollers Mounted upon Revolving Spiders orWheels, of which the following is a specification.

In the drawings, Figure 1 is an end view of one of the spiders or wheelsfor carrying the rollers. Fig. 2 is a vertical section through the line2, 2 of Fig. 1. Fig. 3 is an end View of the central portion of Fig. 1detached. Fig. 4 1s an end view of the circumferential portion of Fig. ldetached. Figs. 5, 6, '7 and 8 are details. Fig. 9 is a detail showinghow the oil chamber may be located in the wheel instead of in the tire.

. The central portion shown in Fig. 3 is cast in a separate piece fromthe circumferential portion and consists of a hub a to receive the mainshaft connected by spokes or other suitable means with a rim 1).

The circumferential portion shown in Fig. 4 WhlCh is to occupy theposition of a tire on the part of Fig. 3, consists of a hollow tire 0cast In one piece composed of the two sides 0' and c with the opening .c'between them.

This opening is unclosed toward the center.

until the parts of Figs. 8 and 4 are combined, so that in theconstruction of the apparatus, after the tire c is cast and before it iscomb1ned with the part of Fig. 3, the opening 0 may be entirely cleansedof all substances, such as sand, &c., which would tend to interfere withthe lubricating efiect of the oil.

The bearings of the rollers are located upon the periphery of the tire cat d d, &c., and from each bearing a hole is drilled toward the centerinto the common ohamber'c. These holes are screw threaded so as toreceive the wlck tubes e, one of which is shown detached in Fig. 7.These tubes are so constructed that the body of the tube at 2' projectsslightly beyond the screw threaded portion 6 so that when thescrewthreaded portion is engaged with the screw thread in the drilledhole already referred to, the projecting portion Q will extend throughthe bushing d of the roller bearing and thushold the bushing securely inposition. The several tubes 8 extend, as shown in Fig. 5, inward intothe common chamberc toward the center, so as to receive the oil fromthat portion of the common chamber 0 which is nearest the center.

at are the caps for securing the roller journals in position in theirbearings. I prefer to provide the wick tubes shown in Fig. '7, with aslot at e for inserting a screw driver to set the tube in its finalposition.

At fa hole is drilled through the outer wall of the chamber 0 in whichis fitted a plug, and about diametrically opposite, another hole 9 isdrilled into which is fitted a cock. By opening this cock and removingthis plug the oil may be drawn off at any time, and by closing this cockand removing the plug the chamber a may be filled. The inner surfaces ofthe parts 0' c on opposite sides of the chamber c are turned off so asto fit accurately the rim (7, which is also turned 0% on its peripheryfor the same purpose; and after the two parts, shown respectively inFigs. 3 and 4, are constructed, the circumferential portion of Fig. 4.is driven on to the central portion of Fig. 3 so that the two arecombined as shown in Fig. 1 and the portion 0 constitutes in substance atire for the wheel or central portion of Fig. 3.

I do not limit myself to locating the side walls of the oil chamber inthe tire casting since I am aware that they may be made in piece withthe wheel casting as shown in Fig. 9 or partly in both. The rim in Fig.9 is designated by b.

I claim- 1. In combination with a wheel or disk, a hollow tire, bearingson the periphery of the tire and passages connecting the severalbearings with the hollow within the tire, substantially as described.

2. In combination with a wheel or disk, a tire containing an open recessand adapted to be closed by a part of the wheel, bearings on .theperiphery of the tire and passages connecting the several bearings withthe said recess, substantially as described.

3. A wheel or disk provided at its periphery with a ciroumferentiallyextending oil chamberin combination with bearings located at theperiphery, said chamber being in commu- ICO nication with said bearings,whereby oil may 5. A wheel or disk having at its periphery be suppliedfrom said chamber to the beara series of bearings and within saidbearings ings, substantially as described. but also at its periphery anoil chamber, in

4:. In combination with a wheel or disk, a combination withaseries ofwicktnbes where- I5 5 tire having bearings, the wheel or disk and bysaid bearings are conneotedwith said 011 the tire being formed one witha circumferchamber, substantially as described. ential ly extendingchannel and the other con DAVID GESSNER stltuting one wall to saidchannel, whereby when said parts are brought together an oil Witnesses:

to chamber is formed for the supply of oil to HENRY L. PARKER,

said bearings, substantially as described. WILLIAM E. FOWLER.

